Whining from Speakers, Rough Idle, Check Engine
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Whining from Speakers, Rough Idle, Check Engine
90 4Runner - 22re - 5 speed - 4x4
Past few days I have noticed that my engine (22re) has sounded just a bit sluggish on the first crank--not a crisp fire up.
Today, on my way to work I heard a faint whining sound from the speakers. It grew louder as I moved through my morning commute. Exiting off the freeway and onto surface streets, the noise got louder, and then the check engine light flickered on while waiting at a light. The engine slightly stumbled, but I throttled it, and the engine light flicked off.
I popped the hood at work, and there is a lope to the engine idle. From the exhaust there is a slight popping, or rough idle detected. When I moved back into the cab, the radio was off, but I was hearing a whining coming from the dash cluster.
I recently had the engine rebuilt (1 year warranty) and the cat replaced. Could this be a back pressure issue? Perhaps a ˟˟˟˟ty weld around the cat? But why the whining in the cab electronics?
Not how I wanted to start my Friday! Any help is appreciated.
Past few days I have noticed that my engine (22re) has sounded just a bit sluggish on the first crank--not a crisp fire up.
Today, on my way to work I heard a faint whining sound from the speakers. It grew louder as I moved through my morning commute. Exiting off the freeway and onto surface streets, the noise got louder, and then the check engine light flickered on while waiting at a light. The engine slightly stumbled, but I throttled it, and the engine light flicked off.
I popped the hood at work, and there is a lope to the engine idle. From the exhaust there is a slight popping, or rough idle detected. When I moved back into the cab, the radio was off, but I was hearing a whining coming from the dash cluster.
I recently had the engine rebuilt (1 year warranty) and the cat replaced. Could this be a back pressure issue? Perhaps a ˟˟˟˟ty weld around the cat? But why the whining in the cab electronics?
Not how I wanted to start my Friday! Any help is appreciated.
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CEL = Check Engine Light (or MIL, Malfunction Indicator Lamp)
Your truck is (desperately) trying to tell you something. You have to listen.
http://www.ncttora.com/fsm/1990-1995...e/diagnosi.pdf
You will see that you need a SST (Special Service Tool). They are very expensive. http://www.staples.com/Staples-Jumbo...product_525923
The whining can also come from just about anywhere in the ignition. But first things first -- good luck!
Your truck is (desperately) trying to tell you something. You have to listen.
http://www.ncttora.com/fsm/1990-1995...e/diagnosi.pdf
You will see that you need a SST (Special Service Tool). They are very expensive. http://www.staples.com/Staples-Jumbo...product_525923
The whining can also come from just about anywhere in the ignition. But first things first -- good luck!
Last edited by scope103; 08-17-2012 at 07:55 AM.
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CEL = Check Engine Light (or MIL, Malfunction Indicator Lamp)
Your truck is (desperately) trying to tell you something. You have to listen.
http://www.ncttora.com/fsm/1990-1995...e/diagnosi.pdf
You will see that you need a SST (Special Service Tool). They are very expensive. http://www.staples.com/Staples-Jumbo...product_525923
The whining can also come from just about anywhere in the ignition. But first things first -- good luck!
Your truck is (desperately) trying to tell you something. You have to listen.
http://www.ncttora.com/fsm/1990-1995...e/diagnosi.pdf
You will see that you need a SST (Special Service Tool). They are very expensive. http://www.staples.com/Staples-Jumbo...product_525923
The whining can also come from just about anywhere in the ignition. But first things first -- good luck!
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Good lookin out, and for catching my error.
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I would assume noise in speakers is either your charging system, or RFI. which is commonly cause by the ignition system, Such as spark plug wires. being a extremely high voltage, it can effect things like your trucks performance by messing with the ecu. This is one reason plug wires have such a thick coating, and their resistance is in the kilo ohms. Check their coating, its a possibility they are the cause.
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I would assume noise in speakers is either your charging system, or RFI. which is commonly cause by the ignition system, Such as spark plug wires. being a extremely high voltage, it can effect things like your trucks performance by messing with the ecu. This is one reason plug wires have such a thick coating, and their resistance is in the kilo ohms. Check their coating, its a possibility they are the cause.
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